旁通阀口具有中心轴线和周边阀座。
The by-pass valve port has a central axis and a peripheral valve seat.
其导阀口前面有导向柱塞；
The Safety valves pilot valve plunger driven in front of mouth;
负压式阀口定量包装机涉及一种粉料的包装机技术。
A quantitative packer with negative pressure valve port relates to a powder packer technique.
传动机构选择性地控制开口与阀口对准的持续时间。
A gearing mechanism selectively controls the duration in which the openings are aligned with the ports.
它结构设计合理，阀口关闭性良好，确保无任何泄漏。
The normal-closed electromagnetic valve has reasonable structure design and good close property ofthe valve port to prevent leakage completely.
阀门必须能够被抬高到(通过阀口充入空气)和用水填充。
Valve must be able to be blown into (to add air via mouth) AND to be filled with water.
气穴是液压系统中常见的一种有害现象，经常发生在阀口附近。
Cavitation is a common harmful phenomenon in hydraulic transmission systems, frequently occurs near the orifice of the valves.
现有技术存在阀口加工困难、阀口密封较差、内漏要求不易保证等缺陷。
The prior art has the defects of difficult machining of a valve port, poor sealing performance of the valve port, hard guarantee of internal leakage requirement, and the like.
介绍PVC糊树脂阀口自动包装机国产化过程中遇到的问题以及解决方法。
This article introduced that we confronted many problems when home-making automatic valve port packager for PVC paste resin and how to solve them.
在不同压力、阀口开度等多种条件下，对先导式纯水溢流阀进行了试验研究。
The experiments were carried out with different supply pressure, flow rate and the pilot-operated water hydraulic relief valve opening on.
阀口压差的稳定是高精度液动测量的保证，因此深入研究了阀口压差控制技术。
Constant orifice differential pressure is the premise for high accuracy hydraulic measuring, so thorough analyse of orifice differential pressure control technology has been taken.
如果输入空气质量差，会造成电磁阀内产生油污，阀芯开启困难，阀口不能完全打开。
If the input air quality is poor, can cause electromagnetic valve, the valve core oil pollution within the open mouth can't completely, the difficult open.
提出了阀口迁移和节流槽多级节流概念，分析了节流槽部位多级分压、流动回环现象。
The new concept of the shift of orifice location and multi-stage orifice in grooves was proposed.
介绍了球阀阀口流量特性试验装置，对水压球阀在不同结构参数下的流量特性进行了试验研究。
A test rig for testing the flow characteristics of ball orifice is introduced. Experiments on the flow characteristics of ball orifices with different structure parameters are carried out.
使用流体力学分析软件对减压溢流阀在阀口不同开度条件下进行了阀内流场的数值模拟和仿真；
Using fluid dynamics analysis software CFD made a numerical simulation to the BOP control system pressure relief valve under the valve different working conditions;
射流的偏转角主要受阀口角度的影响，几乎与阀口尺寸无关；但射流的收缩系数则与两者都有关系。
The deflection angle of injection mainly depends on the valve port angle and almost has no relation to the valve size, but the reduction coefficient vavies with both of them.
气门不过是装在阀杆上加工精细的金属塞而已。当气门就位时（向上移动阀口）时，即可将气门关闭。
The valves are nothing more than accurately machined metal plugs (on long stems) that close the openings when they are seated (have moved up into the openings).
联接管与阀口“O”形密封圈套入处应保持清洁， （见图20） 联接管有剖面线的部位处不能涂油漆。
The tube connector and "O" shape seal ring of the valve must be kept clean, and the cross section line of the tube connector cannot be painted.
第四章首先测试了阀片的启动压力、阀口泄漏量、流量特性以及压力响应时间，然后对实验结果进行了分析和比较。
Chapter 4 first test the starting pressure of valves, leakage of valve port, flow characteristic and response time, and then the experimental results are analyzed and compared.
研究表明：增大阀口开度，增大出口压力，并对阀芯结构进行修改后，插装型液压锥阀阀口气穴现象均可有效减弱。
It can be concluded that cavitation of hydraulic cartridge cone valve is reduced by increasing the opening stroke and the outlet pressure and changing the geometrical structure of valve spool.
依据实际工况，设计了一种模糊自适应PID控制器来控制电液比例调速阀阀口的开口量，实现系统的安全、平稳制动。
According to actual conditions, design a fuzzy adaptive PID controller to control the openings of the electro-hydraulic proportional valve port, implementing a safe and smooth braking.
提出了信号的类型取决于阀口开关的规律。控制方式是信号产生和变化的关键、采用比例伺服控制可提高信息传输量等观点。
Several points of views are put forward, such as the type of signals lie on the moving rules of valves, the manners of control is the...
然而，水压传动技术的应用必须以性能优良的水压元件为前提，而直动式水压溢流阀阀口的压力特性对水压控制系统有着重要影响。
This paper carries out the thorough analysis and research to the pressure characteristics of the water direct-actuated relief valves by experiment and simulation.
[2]李四海，袁士豪。二级节流阀口空化特性表征研究[J]。中国机械工程，2015，(16)：2165- 2169。
LI Sihai, YUAN Shihao. Study on Two-stage Throttle Port Cavitation Characterization [J]. China Mechanical Engineering, 2015, (16) : 2165-2169.
对纯水液压锥阀阀口流场气穴进行了数学建模，并用FLUENT软件进行了仿真分析，从而得到气穴发生的程度与流场压力分布之间的关系。
The flow field cavitation inside the water hydraulic poppet valve was modeled and analyzed by using the software of FLUENT, and the relation between the cavitation and the pressure was investigated.
理论上，如果有实用的动态流量传感器，用一控制阀口开度的电液比例节流阀，再配以压力和流星传感器就可控制这两个县。因目前还没有实用的动?。
With this new concept, the electro-hydraulic proportional valve that can control only pressure or flow has multifunction to control both pressure and flow-Two appplication examples are also presented.
上阀杆通过丝口旋在横膈膜止动螺母里。
我尝了一口，果然有些硬硬的，妈妈又告诉我，压力阀跳动后还要继续煮十分钟才可以停火，哦，原来如此！
I took a sip, and some hard, my mother told me, the pressure valve beating after also continue to cook for ten minutes before the cease-fire, oh, so that is what it is!
为了安全起见我们要在取样点设双阀以便于安全的压降，取样口还要加护罩。
For safety we should use dual valves to aid safe pressure reduction, and cap the sample outlets.
为了安全起见我们要在取样点设双阀以便于安全的压降，取样口还要加护罩。
For safety we should use dual valves to aid safe pressure reduction, and cap the sample outlets.
应用推荐